nonpathogenic chronic viremia, maintenance of gastrointestinal epithelial barrier integrity,
and low numbers of target cells. Assessment of cell-associated virus load in T cell subsets in
multiple anatomic compartments of chronically SIV-infected sabeus African green monkeys
(AGMs) revealed that gastrointestinal memory CD4+ T lymphocytes are a major source of
cell-associated virus and a significant contributor to SIV viremia in AGMs.